Team 254 Presents: Dropshot Technical Binder 2016

[RoboChair]

Originally Posted by Ashwin Adulla

The main purpose of the safety wire, as suggested by Team 1678, was to prevent our fairlane flywheel from expanding a significant amount past 5000 rpm. During prototyping, the fairlane wheels expanded to the extent that we were fearful of testing them out. As a result, the safety wire constrained the expansion of the wheels to a certain diameter which allowed us to ramp up to around 6000 rpm at Champs for taking shots. As for the process of installing them, the safety wire was wrapped once around the wheel, cut to its length, and then two ends were twisted together and then stuck inside the neoprene so as to prevent it from contacting the boulder. I have attached a picture of the flywheel below.

Originally Posted by lnex1357

We are throwing some fairlane wheels on our shooter for an offseason event in place of our colsons. Did you guys use round or flat safety wire and what was the rough OD or width respectively, as I would prefer not to guess and check through a series of McM orders. Thanks so much!

Round safety wire 0.032" diameter. 1678 ran 2 wraps around our wheels. It's a little bit of a tricky process. You must get the safety wire tight and squeezing into the wheel a little and you will almost definitely break some wires in the process of twisting them. Try until you succeed To stuff the twisted wire end into the wheel use a screwdriver or awl to stab into the rubber right next to the twisted end, then stuff it in.

Attempted destructive test of a shooter wheel